package com.sky.service.impl;

import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Category;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.BaseException;
import com.sky.exception.PasswordErrorException;
import com.sky.interceptor.JwtTokenAdminInterceptor;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;

@Service
@Slf4j
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
       String password1= DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password1.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
       employee.setCreateTime(LocalDateTime.now());
       employee.setUpdateTime(LocalDateTime.now());
        //设置账号状态
        employee.setStatus(StatusConstant.ENABLE);
        Long id = JwtTokenAdminInterceptor.threadLocal.get();
        employee.setCreateUser(id);
        employee.setUpdateUser(id);
        try {
            employeeMapper.save(employee);
        } catch (Exception e) {
            throw new BaseException("账号重复");
        }


    }

    @Override
    public PageResult page(EmployeePageQueryDTO employeePageQueryDTO) {
        //获取查询
        int pagesize = employeePageQueryDTO.getPageSize();
        String name = employeePageQueryDTO.getName();
        int pageno =( employeePageQueryDTO.getPage()-1)*employeePageQueryDTO.getPageSize();
        //获取当前页数的数据结果并返回到对象
        List<Employee> employees = employeeMapper.page(pageno,pagesize,name);
        //获取总数
        Long count = employeeMapper.count();
        log.info("总数为{}",count);
        return  new PageResult(count,employees);
    }

    @Override
    public void updatestatus(Integer status, Long id) {
        Employee employee = new Employee();
        employee.setStatus(status);
        employee.setId(id);
        employeeMapper.update(employee);
    }

    @Override
    public Employee selectemploye(Long id) {
        Employee employee = employeeMapper.select(id);
        return employee;
    }

    @Override
    public void bianji(Employee employee) {
        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(JwtTokenAdminInterceptor.threadLocal.get());
        employee.setCreateUser(JwtTokenAdminInterceptor.threadLocal.get());

        employeeMapper.update(employee);
    }


}
